
		<div class="head-nav">
			<div class="head-left">
				<div class="back">返回</div>
			</div>
			<div class="head-center">详情</div>
			<div class="head-right">
				<a href="../index.html">
					首页
				</a>
			</div>
		</div>

		<script type="text/javascript">
		
			$(function(){
				//头部左侧点击返回
				function goBack(){
					$('.head-left','.head-nav').click(function(){
						window.history.back(-1)
					})
				}
				goBack();
			})	
		
		</script>
